Railway journal lubricator pump



Oct. 12, 1943.

J. J. HENNESSY RAILWAY JOURNAL LUBRICATOR PUMP Filed June 1, 1942 INVENTOR 1 JAMES J. HENNESSY TTORNE Patented Oct. 12, 1943 U N'l-TE D STAT 2,331,835-

RAILWAY JOURNAL LUBRI'GATORL PUMP James:- J .Hermessy, Montclair; N. J

ApplicationJune'l, 1942, Serial No. 4455299 8 Glaimsa The invention relates to lubricators" for railway journals or the like in which the mechanical pump is actuatediby theplay of" the journaliin the journal box longitudinally of"the journal.

The restritd. space between the bottom-of the. journal andithe bottom. of f the boxusually. requires that .the boxb'e. jacked upjfrom thejoure nal, thejournal hearing. and wedge removed; and I the box-lowered..clirectly,r onto. the. journal before. the lubricator device: Could. be. applied or removed;

Qne. of the. problems. attending the. installation and use. of such a. .pump... the. ordinary, outside bearing, A. A. R. standardJournal; box. in general .use- .onrailway. rolling stock, .particularlyinthe. smaller siZes. .o-f.boxes,..is..the inser,

tiom andlremovat. of the. .lub'ricator. througlizthee open endof the box and beneath the journal...

The main object of the presentinventionisato facilitate. the-insertion.- and-removal; of a lubricator. device inte. and from.- the. space.. beneath thejournal while .it .is.-.in the journal box-r Another object is-.to.securely,position .th'epump. in.theeboxrwhenstherpump. is-.in.operating.;posi.-. tion without: affectingthe removab-il-ity. of.- the pump. when .desired-i. I

Y Patents. Nos. 1348,2957 and. 2, l82,205. have..- thee same, general. object and. are. satisfactory in. some installations .buteach .of thesedeviceshave; certain limitations In. thefirstot .these .patents,. a. bell. crank-.is-pivotem on..the .pumnbody. atLa... point beneath the journal with one arm engage ing; the end. of. the journaLand. the; other arm engagingthepump piston-at .apoint beneath. the; jouunaL. This arrangementmecessitates. the pis= ton enga ing-.arm-.being,of such short lengththat its effective length is variedgreatly-duringthestroke and. it mustslide :overthe. endot thepump plunger. This.undesirable.limitationispartiu: larly, accented..- if the. installation .is. in a..small"f size. journal boxr In the. second ..of .these. patents.- the... pump-is. spring v supported; immediateljn. be neath the .journal .and. isactuatedJby, a. slidable. journal engaging. element and depends. for its intake .upon .a .hingedidpendinguarm. In. this. pumntheplfinger. is notlactuatedby the pre-. ferredipivotedilever; device .characteristic .of-fth'e other. pump and; the complete structure is. more complieatedlthan desirable.

It is an additional ob'jectof'the present in vention..to..secure ..an effective leverage arrangement, positionedbieyondthe.end; of the journal;.' for actuatinga pump plunger ppsitionedlinpa" pump body beneath the journal;

These generalobieetsfandother dtailobjects aswill'be described" below" are attainediby" the" structures illustrated' in'theaccompanying draw ingirrwhichi- Figure l. is". a longitudinal vertical section; throughth'e 'lowerportion ofan At A; R11. (Amer ican' Association of Railroads) journal box" mounted'on" an A. A. R: journal and to which the present lubricating. device; including" a" suitable distributonhasbeen-applied; and taken along Figure 2 is atop; view?of'theipump bodyv and'i'. its operating, mechanism"; the" box walls'beix'i'g'". shown-.irr section" andth'e journal indieat'edf broken .lines.

Figure. 3 is a vertical transverse: section through the box andlooking'atithefforward'iendi of the lubri'cator. with some of the details sec= tioned lto" better illustrate the construction:

The journal I mounts" the usual bearing? anal". wedge. (notshown) upon whichthe .b-oX4 is carriediandithe.v latter"is.-oftheusualK; A. R... construction with upright side walls" 5 and" a: bottom. wall' Birounddik upwardly at the front-,1 of Ttl'ie-box. Thefi ont end ofi'thebox has the usual opening Tprovidediwith' adoor"'(not"shown-)" andtherea-r end. of the box has the usual open: ing 8 Tandfis' equipped wlthla suitable dusvguaru (not shown);

All ofitherab'ove elements are of "familiar eon? str-uction. and in themselves: donot consti tutethe present invention. Thelilbririating. deviee @11 j sists generally of two parts, ,a-pumpi. uhitl ofandi adistrihutor. unit. 1 l. The pump; unit" includes" ada'ody. casting l 3l arranged.;t'o lrestupon the'bottern of; thebox. and having, parallel b'or'e's' I5"; forming the pump cylinders. Individual-waived passageways. (not shown.) lead fromicylinders [5 to .a commonuoutlet" l'llneat th'ei'nner endfiof body. 13'...

Each piston. .Ztlproicts. forwardly. beyond the pump, body. andlis counterbor-ed to.-reeeive apushrod! 22 terminatingdnahook" 211- Projecting diagonallii forwardly andlTupwardly. from the forward. .end- .oftthe pump. hodfln are ea-rs '241 eth'e outer: ends .of whichflcontacti with the upturned porti'onof .bottom-walllF to-holdthepump; agair'istfi movementt'o theleftlFigures 1andJ2-)'. Leversi; 26'. are .pivot'edlat 28: to the respective ears'iand" the inner en'dot'each' lveris' apertured"to"r'eji=' ceive the hook 23 of the correspondingpush rot 1"" 2 2'. Each earifl' is urmeu substantially parallel in wabari nke eontact elment fl al ra d w bear against the outer end of journal I and to be moved by the latter towards the forward end of the box when the journal shifts towards the end of the box and, in so doing, to engage the outer end of the corresponding lever 26 and rotate the latter so that its inner end thrusts rod 22 and the piston inwardly of the pump body.

The outer end of each piston 26 is provided with a collar 33. The outer end of the pump body is counterbored at 34. A coiled spring encircling the piston is seated at its opposite ends against collar 33 and the inner end of counterbore 34. Upon movement of the journal to the right (Figures 1 and 2), springs 35 return the pistons and levers 26 and 3%) to their original positions, maintaining the contact between elements 32 and the end of the journal. The interior structure of the pump corresponds to that of my copending application, Serial No. 435,769, filed March 23, 1942, and in itself does not constitute the present invention.

A U-shaped holding plate 48 fits around the main portion of the pump body, having recesses 4| to receive body lugs 42, and extends between the box side walls and is provided with downturned lips 43 resting on the box bottom wall and with a tail piece 44 extending over the rear end of the pump body and rearwardly therefrom to the box rear wall. Preferably the lower edges of lips 43 and the end of piece 44 are welded to the box at W so that plate positions the pump transversely and longitudinally of the box.

The underside of the pump body immediately beneath intake Valves 45 is elevated from the box Wall by rib-like elements 31 to provide clearance for the flow of oil to the intake, and a screen 46 overlies the adjacent portion of the pump to prevent dirt and other foreign matter from entering the intake.

The articulated distributor is of the type illustrated in my Patent 2,272,199, issued February 10, 1942, and in my application, Serial No. 409,- 761, filed September 6, 1941, and it is supported by the spherical lower end of its arm 41 in the spherical seat 48 in the pump body.

From the above description and the accompanying drawing it will be seen that the pump unit I0 is relatively short and is readily inserted through the box opening 1 into its functioning position beneath the journal and is held firmly against shifting from its functioning position until it is positively withdrawn.

The pump unit and the distributor unit may be inserted beneath the journal separately and there assembled by inserting the lower end of arm 4'! in seat 48.

It will be understood that the lower portion of the box is provided with a supply of oil and that the pump is operated by the reciprocation of the journal in the box, each movement of the journal to the right resulting in the spring actuation of the pump pistons outwardly to draw oil through intake valves 45 and each movement of the journal in the opposite direction moving 1evers 30 and 26 to thrust pistons 20 inwardly to discharge oil through outlet H in the lower portion of distributor arm 41 whereby lubricant is supplied to distributor plate 59 during the operation of the vehicle.

The compound leverage arrangement positioned outwardly of the end of the journal facilitates the provision of desired piston movement to accommodate diiferent journal movements,

different densities of oil and other conditions such as size of the journal, the rods on the journal, climate, etc. When the box is jacked up to change the bearing, the lower edge of the journal collar C may contact lugs 49 on the top of the pump body, in which case the thrust will be transferred through the latter and through forward ribs 37 directly to the bottom wall of the box without injury to the pump. Lugs 5! on cars 24 oppose the adjacent edges of levers 26 and limit the movement of the outer ends of these levers away from the pump body and thereby prevent the falling over outwardly of the upright levers 30 when the pump is being applied to or removed from its operating position in the box. Lugs 52 on ears 24 oppose the lower portions of levers 30 and prevent the latter from falling over inwardly under similar conditions.

The compound leverage arrangement makes it possible to locate the fulcrums of the journalengaging levers 30 adjacent to the box bottom Wall but spaced transversely of the box from the pump cylinders and pistons which must be immediately adjacent the lowermost portion of the box, which constitutes an oil sump. Hence the pump body may be made very shallow and its projection outwardly of the plane of the end of the journal may be minimized, thus facilitating the insertion and removal of the pump through the end of the box into and out from the space beneath the journal. Any desired reciprocal movement of the pistons may be obtained by shifting the fulcrums for piston-engaging levers 26, and this change in the lever arms will not require any increase in the depth, width or length of the pump body.

All the parts are easily manufactured and readily assembled and there is thus provided a durable, economical structure for the intended purpose.

What is claimed is:

1. In a railway axle journal lubricator of thetype operated by the axial play of the journal in the journal box, an elongated pump body adapted to lie along the longitudinal center of the bottom of the box and provided with a cylinder and a piston, a piston-actuating lever pivoted on the pump body and extending laterally from its piston-actuating end towards the side of the box, and another lever fulcrumed on the pump body and extending upwardly therefrom past and acting on the outer end of said first-mentioned lever and having a journal-opposing upper terminus.

2. A structure as described in claim 1 in which the piston-actuating lever is inclined upwardly from its inner piston-actuating end and the journal-opposing lever is inclined inwardly from the end of the other lever. K

3. Structure as described in claim 1 which comprises duplicate cylinders and pistons and operating levers therefor disposed at opposite sides of the longitudinal center line of the structure with the piston-actuating levers extending in opposite directions from the center ofthe structure.

'4. Structure as described in'claim 1 in which the forward portion of the pump body is provided with an ear inclined upwardly and laterally from'the cylinder-forming section and the levers are fulcrumed on said ear at points spaced laterally from the cylinders and pistons.

5. Structure as described in claim 1 in which the portion of the journal-opposing lever above its contact with the piston-actuating lever is offset outwardly of the end of the pump body to permit the end of an associated journal to projectover the fulcrum of the journal-opposing lever.

6. In a railway axle journal lubricator, a pump body including a cylinder, a piston reciprocable in the cylinder, a, spring associated with said cylinder and body for thrusting the piston in its,

outward movement in said cylinder, said piston having an axial bore in its outer end, a pistonactuating lever pivoted on said body with one end disposed in alignment with the piston, a push rod of substantially smaller diameter than said bore with one end pivotally seated in the inner end of said bore and with its other end engaged by said lever, and a cooperating lever pivoted on said body with one end arranged to contact the end of an axle joum'al to which the device is applied and with another part of the cooperating lever arranged to operatively engage said first-mentioned lever to actuate the latter against said spring by the shifting of the journal relative to the pump body.

'7. In a railway axle journal lubricator, a pump body including a cylinder, a piston reciprocable in the cylinder and having a portion projecting outwardly therefrom, said body having a bore of substantially larger diameter than said piston surrounding the outwardly projecting portion of the latter, a spring received in said bore and engaging said piston portion to thrust the same outwardly of the cylinder, said piston portion having an outwardly opening bore, a push rod of substantially smaller diameter than said piston bore received in said bore and projecting outwardly therefrom, and a piston-actuating lever disposed to engage the outer end of said rod and operable to move the piston inwardly of the cylinder against the thrust of said spring, and a cooperating lever pivoted on said body with one end arranged to contact the end of an axle journal to which the device is applied and with another part of the cooperating lever arranged to operatively engage said first-mentioned lever to actuate the latter against said spring by the shifting of the journal relative to the pump body.

8. In a journal lubricator of the class described, a pump body member having a pair of pump cylinders spaced transversely from the longitudinal center line of the lubricator, pistons in said cylinders, and mean for operating the piston at one side of said center line comprising a substantially horizontally disposed lever fulcrumed on said body member with one end actuating said piston, and a substantially upright lever fulcrumed on said body member with one end acting on the other end of said first-mentioned lever and with its other end opposing the end of the journal at one side of said center line.

JAS. J. HENNESSY. 

